These are a powerpoint presentation on chemistry A level notes on entropy. The notes have been well written to help students and teachers undertaking chemistry a levels in edexcel IB and cambridge based syllabuses. What is Entropy Comparing entropy values Predicting entropy change Predicting sign of entropy Calculating entropy change of a reaction Spontaneous and non-spontaneous reaction Calculating the entropy change of the system Calculating the entropy change of the surroundings Calculating total entropy change ROLE OF TEMPERATURE Why water freeze at -5 but does not at -5 More Entropy changes Dissolving substances in water SOLUBILITY OF GROUP 2 SULPHATES AND HYDROXIDES Lattice energy and born Haber cycles lattice energy construct Born–Haber cycles enthalpy change of atomisation and electron aff inity eff ect of ionic charge and ionic radius on the numerical magnitude of a lattice energy ■■ interpret and explain qualitatively the trend in the thermal stability of the nitrates and carbonates of Group 2 elements in terms of the charge density of the cation and the polarisability of the large anion. apply Hess’s law to construct energy cycles to determine enthalpy changes of solution and enthalpy changes of hydration. ■■ interpret and explain qualitatively the variation in solubility of Group 2 sulfates in terms of the relative values of the enthalpy change of hydration and the corresponding lattice energy.

Biology schemes of work for Cambridge IGCSE for term 2. Made from 2020-2022 Biology 0610 syllabus. The schemes of work are written for every teacher teaching 0610 extended syllabus. For core syllabus, check on other resources. The schemes of work are professionally designed to include the week, lesson, topic, subtopic to teach, objectives as per the syllabus, teaching activities for each lesson, Teaching aids for each lesson and the remarks session for the teacher to fill if covered successfully or not.

IGCSE schemes of work for physics tutors teaching/handling year 9 students. The schemes are in line with the current syllabus for lower secondary students aiming to help them achieve their full potential and preparing them for upper secondary.

IGCSE schemes of work for physics tutors teaching/handling year 11 students. The schemes are in line with the current syllabus for lower secondary students aiming to help them achieve their full potential and preparing them for upper secondary.

Schemes of work IGCSE schemes of work for physics tutors teaching/handling year 10 students. The schemes are in line with the current syllabus for lower secondary students aiming to help them achieve their full potential and preparing them for upper secondary.

YEAR 11 NOTES OF GLOBAL PERSPECTIVE FOR STUDENTS 2020

The Cambridge IGCSE schemes of work for year 09 Physics schemes of work. well written schemes of work for physics/science year 9

Chemistry for Cambridge IGCSE schemes of work for term 2. Made from 2020-2022 chemistry 0620 syllabus. The schemes of work are written for every teacher teaching 0620 extended syllabus. For core syllabus, check on other resources. The schemes of work are professionally designed to include the week, lesson, topic, subtopic to teach, objectives as per the syllabus, teaching activities for each lesson, Teaching aids for each lesson and the remarks session for the teacher to fill if covered successfully or not.

YEAR 12 CHEMISTRY INTRODUCTION TO ORGANIC CHEMISTRY ALKENES POWERPOINT NOTES WITH END OF CHAPTER QUESTIONS AND ANSWERS. NOTES ARE RELEVANT FOR BOTH CONCEPTS IN CAMBRIDGE AND EDEXCEL IAL LEVEL CHEMISTRY. U NIT 1 IAL

This Powerpoint material is suitable for students and teachers sitting and teaching chemistry in A LEVELS for all syllabuses. The following are areas covered in this document. 1 explain that catalysts can be homogeneous or heterogeneous 2 describe the mode of action of a heterogeneous catalyst to include adsorption of reactants, bond weakening and desorption of products, for example: (a) iron in the Haber process (b) palladium, platinum and rhodium in the catalytic removal of oxides of nitrogen from the exhaust gases of car engines 3 describe the mode of action of a homogeneous catalyst by being used in one step and reformed in a later step, for example: (a) atmospheric oxides of nitrogen in the oxidation of atmospheric sulfur dioxide (b) Fe2+ or Fe3+ in the I–/S2O8 2– reaction 4 understand that knowledge of the rate equations for the hydrolysis of halogenoalkanes can be used to provide evidence for SN1 and SN2 mechanisms for tertiary and primary halogenoalkane hydrolysis 5 be able to use calculations and graphical methods to find the activation energy for a reaction from experimental data The Arrhenius equation will be given if needed. 6 understand the use of a solid (heterogeneous) catalyst for industrial reactions, inthe gas phase, in terms of providing a surface for the reaction

Schemes of work for cambridge IGCSE Chemistry year 11 term 2 containing all learning objectives as per the syllabus. IGCSE upper secondary chemistry scheme of work for teachers teaching the cambridge system of education.

Biology schemes of work for cambridge IGCSE Upper secondary school term 2 for teachers teaching this syllabus. The schemes are made from the current 2020-2022 syllabus and is suitable for teachers in this system. tHE RESOURCE MATERIAL IS FROM Mary Jones AND Geoff Jones Biology course work book. Among the topics covered include; Chemicals of life Enzymes Plant Nutrition Animal Nutrition Transport in Plants

Schemes of work for year 7 physics. Schemes of Work 2020 SUBJECT: Physics year 7 for the whole year for teachers teaching IGCSE

This is the Cambridge IGCSE Course outline for Year 10 TERM 3 arranged in Terms/Semesters for Biology. This outline is meant to give teachers a way to tackle the different topics in the class DURING TERM 3.

This is the biology course outline for Cambridge IGCSE Chemistry 0620 meant for term 2. This resource helps teachers to plan for their classes.

This is the biology course outline for Cambridge IGCSE Biology 0610 meant for term 1. This resource helps teachers to plan for their classes.

This is the chemistry course outline for Cambridge IGCSE chemistry meant for term 1. This resource helps teachers to plan for their classes.

This is the biology course outline for Cambridge GCE Biology meant for term 2. This resource helps teachers to plan for their classes.

AS Biology unit 1 topic 1 notes for students taking A level biology. These notes are well structured with clear images to guide the student on what the notes are talking about. The notes covers Cell physiology, Cytology and microscopy.

Cambridge AS LEVEL CHEMISTRY NOTES TOPIC 1. These notes are written for teachers teaching and students undertaking AS LEVEL CHEMISTRY FOR CAMBRIDGE SYLLABUS. THEY COVER TOPIC 1 OF AS CHEMISTRY. MOLES